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3281974
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Information
Patent Grant
3281974
References
Source
Patent Number
3,281,974
Date Filed
Not available
Date Issued
Tuesday, November 1, 1966
58 years ago
CPC
B42D9/08 - having radial arms, one per leaf, operated successively
B42D9/086 - actuated by a spring for each arm
US Classifications
040 - Card, picture, or sign exhibiting
084 - Music
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